The sign() function takes a math expression and returns 1 if the result is positive, -1 if it's negative or 0 if it's zero.
The abs() function takes in an argument and returns its absolute value, i.e., it always returns the argument's positive value.
A while back, Temani tacked a repeating grid of hexagon shapes. Well, he's updated it with modern CSS features that result in fewer magic numbers. And it's impressive!
The atan2() trigonometric function takes two values (Y, X) and returns its inverse for the atan() function.
The atan() trigonometric function takes a number and returns its inverse for the tan() function
The asin() trigonometric function takes a number and returns its inverse for the sin() function.
The acos() trigonometric function takes a number and returns its inverse for the cos() function.
If we have a ratio that represents the sine, cosine or tangent of an angle, how can we get the original angle? This is where inverse trigonometric functions come in!
